Plow.



O. L. K. H. OLDENBURG.

PLOW.

APPLIOATION FILED MAY 25, 1911.

Patented Apr. 21, 1914.

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WITNESSES ATTORNEYS COLUMBIA PLANDGRAPH COUWASHINGTON, D. c.

0. L. K. H. OLDENBURG.

PLOW.

APPLICATION FILED MAY 25, 1911. 1 ()94 24() Patented Apr. 21, 1914.

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WITNESSES [WE/W01? a 0550 if X. 6901M6 ATTORNEYS cnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn I INITEB STATES PATENT OTTO L. K. H.OLDENBURG, OF MOUNT MORIAH, NATAL, SOUTH AFRICA.

PLOW.

Specification of Letters Patent.

Application filed May 25, 1911.

Patented Apr. 21, 1914.

Serial No. 629,336.

To all whom it may concern Be it known that I, O'r'ro L. K. H. OLDEN'BURG, a British subject, and a resident of Mount Moriah, Weenen county,Natal, South Africa, have invented a new and Improved Plow, of which thefollowing is a full, clear, and exact description.

My invention relates to plows and it has for its object to provide aplurality of plow shares and mold boards mounted on a shaft adapted tobe rotated, the mold boards being curved in the manner of a screwpropeller blade, so that they will cut the ground and turn it overthoroughly, one mold board extending beyond the vertical plane of theland side of an adjoining plow member to more thoroughly work thesurface of the ground between the end plow members on the shaft.

An additional object of the invention is to provide means for holdingthe shaft oarrying the plow members at a predetermined distance abovethe ground.

Still other objects of the invention will appear in the followingcomplete specification, in which the preferred form of my invention isdisclosed.

In the drawings similar characters of reference indicate correspondingparts in all the views, in which- Figure l is a side sectional elevationof i my improved plow; Fig. 2 is a plan view of Fig. 1; Fig. 3 is an endview of Fig. 1; Fig. 4: is an enlarged fragmentary view showing themeans for supporting the arms carrying the shaft on which the plowmembers are mounted.

By referring to the drawings it will be seen that a wagon body 5 isprovided, having axles 6, on which wheels 7 are mounted in the usualmanner. A box member 8 is secured to the wagon body 5, the sides ofwhich are provided with hearing members 9, in which a shaft 10 isjournaled. Arms 11 have bearings 11 in which the shaft 10 is journaled,a shaft 12 also being journaled in bearings in the said arms 11. Thearms 11, between the shafts 10 and 12, are connected together by meansof a transverse member 13. Mounted on the shaft 12 there are a pluralityof curved mold boards 14, which, with the curved plow shares 15, and theland sides 16, form the plow members.

As shown in the drawings, the land side of each of the plow members isflat, and is vertically disposed, while the mold boards are curved inthe manner of a blade of a screw propeller. The rear extremity 16 ofeach of the plow members extends laterally beyond the vertical plane ofthe land side of the adjoining plow member, the plow members overlappingin this manner, so that the rear extremity of a mold board will act onthe surface of the ground which has just been out by the plow share onan adjoining plow member. There are a plurality of openings 17 in thetail piece 18 of the wagon body 5. Threaded shanks 19, which are securedto eye members 20, are disposed in these openings, the threads on thesaid shanks being engaged by nut members 21 which rest against the tailboard 18 about the said openings 17. There are openings 22 in the nutmembers 21, in which may be inserted spikes by which they may be readilyrotated to raise or lower the eye members 20, in which the transversemember 13 is disposed. A sprocket wheel 23 is secured to the shaft 10,and a similar sprocket wheel 24; is secured to the shaft 12, thesesprocket wheels 28 and 24 being connected by a sprocket chain 25. A gearwheel 26 is also secured to the shaft 10, a gear wheel 27, mounted on ashaft 28, meshing with the gear Wheel 26. This shaft 28 is connectedwith the engine 29, by which it is rotated.

In using the invention the wagon body 5 is drawn in the direction of thearrow indicated in Fig. 1 of the drawings, and the engine is operated todrive the mechanism described so that the plow shares and mold boardswill be rotated in the direction indicated by the arrow in Fig. l of thedrawings. When thus rotated, the plow shares 15 will out the groundwhich will be raised and turned over by the mold boards 16, in very muchthe same way as a gardener digs with a spade and raises the dirt,turning it over as he deposits it.

It will be understood that the plow members which I have described maybe spaced apart and mounted as may be desired on the shaft 12, and ifdesired a number of these shafts 12 may be disposed one in front of theother, each provided with one or more of the plow members fullydescribed in this specification.

If desired cutters 80 may be secured to the shaft 12 in front of theplow share 15 for cutting the sod.

Having thus described my invention I claim as new and desire to secureby Letters Patent:

1. In a plow, a shaft, land side members spaced apart and secured to theshaft, and screw shaped plow members secured to the shaft and extendingaround the shaft substantially 180 degrees, the rear of the screwshapedplow members extending beyond the vertical planes of the adjacent landside members.

2. In a plow, a shaft, and screwshaped plow members secured to theshaftand extending around the shaft substantially 180 degrees, the plowmembers having entrance points spaced from the shaft and extendingforward.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OTTO L. K. H. OLDENBURG. Witnesses:

J. WV. FooKnRs, HUGH S. HooD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, .D. G.

